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Finding the Third Proportional to 39,396 and 65,652

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Solution

The third proportional to 39,396 and 65,652 is: 109,406.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,396 : 65,652 = 65,652 : x
  2. Step 2: Convert to fraction form
    39,396/65,652 = 65,652/x
  3. Step 3: Cross multiply
    39,396x = 65,652 × 65,652
  4. Step 4: Simplify right side
    39,396x = 4,310,185,104
  5. Step 5: Solve for x
    x = 4,310,185,104/39,396
  6. Step 6: Final answer
    x = 109,406.67

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Why These Related Problems?

These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.